<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml"
      xmlns:th="http://www.thymeleaf.org">
    <head>
        <title></title>
        <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
    </head>
    <body>
        <div>文件上传</div>
        <form action="${host}" method="post" enctype="multipart/form-data">
            <label for="file">选择文件:</label>
            <input type="hidden" name="OSSAccessKeyId" value="${accessid}"/>
            <input type="hidden" name="policy" value="${policy}"/>
            <input type="hidden" name="signature" value="${signature}"/>
            <input type="hidden" name="key" value="${dir}/adsfadfa.png"/>
            <input type="hidden" name="success_action_status" value="200"/>
            <input type="file" name="file"/>
            <br />
            <input type="submit" name="submit" value="确定" />
        </form>
    </body>
</html>